1 | <?php |
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2 | |||
3 | namespace DNADesign\Elemental\Controllers; |
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4 | |||
5 | use DNADesign\Elemental\Models\BaseElement; |
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6 | use SilverStripe\Control\Controller; |
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7 | use SilverStripe\Control\Director; |
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8 | use SilverStripe\View\Requirements; |
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9 | |||
10 | /** |
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11 | * Optional controller for every element which has its own logic, e.g. in forms. |
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12 | * |
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13 | * It always handles a single element, usually passed in as a database |
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14 | * identifier through the controller URL. Needs to be constructed as a nested |
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15 | * controller within a {@link ContentController}. |
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16 | * |
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17 | * ## Forms |
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18 | * You can add forms like in any other SilverStripe controller. If you need |
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19 | * access to the element from within a form, you can use |
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20 | * `$this->controller->getElement()` inside the form logic. |
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21 | * |
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22 | * @package Elemental |
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23 | */ |
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24 | class ElementController extends Controller |
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25 | { |
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26 | /** |
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27 | * @var BaseElement $element |
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28 | */ |
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29 | protected $element; |
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30 | |||
31 | /** |
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32 | * A list of default (example) styles to include |
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33 | * |
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34 | * @config |
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35 | * @var string[] |
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36 | */ |
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37 | private static $default_styles = []; |
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38 | |||
39 | /** |
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40 | * Whether to include default (example) styles |
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41 | * |
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42 | * @config |
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43 | * @var bool |
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44 | */ |
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45 | private static $include_default_styles = true; |
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46 | |||
47 | /** |
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48 | * @param BaseElement $element |
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49 | */ |
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50 | public function __construct(BaseElement $element) |
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51 | { |
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52 | $this->element = $element; |
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53 | |||
54 | parent::__construct(); |
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55 | |||
56 | $this->setFailover($this->element); |
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57 | } |
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58 | |||
59 | /** |
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60 | * @return Element |
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61 | */ |
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62 | public function getElement() |
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63 | { |
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64 | return $this->element; |
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65 | } |
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66 | |||
67 | /** |
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68 | * Renders the managed {@link BaseElement} wrapped with the current |
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69 | * {@link ElementController}. |
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70 | * |
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71 | * @return string HTML |
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72 | */ |
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73 | public function forTemplate() |
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74 | { |
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75 | $defaultStyles = $this->config()->get('default_styles'); |
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76 | if ($this->config()->get('include_default_styles') && !empty($defaultStyles)) { |
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77 | foreach ($defaultStyles as $stylePath) { |
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78 | Requirements::css($stylePath); |
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79 | } |
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80 | } |
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81 | |||
82 | $template = $this->element->config()->get('controller_template'); |
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83 | |||
84 | return $this->renderWith([ |
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85 | 'type' => 'Layout', |
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86 | 'DNADesign\\Elemental\\'.$template |
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87 | ]); |
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88 | } |
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89 | |||
90 | /** |
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91 | * @param string $action |
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92 | * |
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93 | * @return string |
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94 | */ |
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95 | public function Link($action = null) |
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96 | { |
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97 | $page = Director::get_current_page(); |
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98 | |||
99 | if ($page && !($page instanceof ElementController)) { |
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100 | return Controller::join_links( |
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101 | $page->Link($action), |
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102 | '#'. $this->element->getAnchor() |
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103 | ); |
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104 | } |
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105 | |||
106 | $curr = Controller::curr(); |
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107 | |||
108 | if ($curr && !($curr instanceof ElementController)) { |
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109 | return Controller::join_links( |
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110 | $curr->Link($action), |
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111 | '#'. $this->element->getAnchor() |
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112 | ); |
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113 | } |
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114 | } |
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115 | } |
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116 |